E-Mount Lens/Full-Frame Format
Aperture Range: f/2.8 to f/22
Three Aspherical and Two HR Elements
Three Extra-Low Dispersion Elements
AF 18mm f/2.8 Overview
Offering an ultra-wide field of view, the Sony E-mount AF
18mm f/2.8 FE from Samyang is also distinguished by its especially compact and
lightweight design. The rectilinear wide-angle design is well-suited for
landscape, architecture, and interior subjects, as well as being suitable for
astrophotography applications. Its optical design includes a series of
aspherical, high refractive index, and extra-low dispersion elements, which
reduce a variety of aberrations in order to produce well-controlled, sharp, and
clear imagery. An Ultra Multi-Coating has also been applied to individual
elements to suppress flare and ghosting for improved contrast and color
accuracy. Additionally, the lens's linear STM autofocus motor works in
conjunction with Sony cameras' AF systems for quick, quiet, and precise
focusing performance, and manual focus override is also available for more
Compact ultra-wide-angle prime is designed for
full-frame Sony E-mount mirrorless cameras, however can also be used with APS-C
models where it provides a 27mm equivalent focal length.
The f/2.8 maximum aperture helps to achieve a
compact, lightweight design while remaining suitable fast enough for working in
available light conditions.
Three extra-low dispersion elements reduce colour
fringing and chromatic aberrations in order to produce greater clarity and colour
Three aspherical elements and two high
refractive index elements control spherical aberrations and distortions for
improved sharpness and resolution.
An Ultra Multi-Coating has been applied to
individual elements in order to reduce flare and ghosting for increased
contrast and a neutral colour balance.
The integrated linear STM autofocus motor works
in conjunction with Sony cameras' focusing systems for quick, quiet, and
precise AF control. Manual focus override is also available for refining your
Internal focusing design maintains the overall
lens length and prevents the front of the lens from rotating during use.
Included lens hood helps to block stray light
from causing flare and ghosting.